[Mod] Underworld mapgen and portals [uw]

[orwell]

This is the combination of PilzAdam's nether mod, paramat's subterrain cavegen and a rewrite of Joz's railcorridors. Together they form an Underworld starting from -5000 on.
The portal construction works like in PilzAdam's mod (https://forum.minetest.net/viewtopic.php?id=5790).
You can use any world that has not been explored below -5000, and that is using one of the builtin map generators.

See the screenshots in the next post.

Depends on:
default

Optional dependencies:
moreblocks (to add stairs and slabs of underworld materials)

For code licenses and further details see the various readme files in the mod directory. My changes are WTFPL.
All media licensed under CC BY-SA 3.0

This mod was initially released as underworld_mp. Please delete the whole modpack when installing this mod.

Now on github: https://github.com/orwell96/uw

Download:

uw_2_2.zip

v. 2.2

(19.16 KiB) Downloaded 235 times

Changelog:
- Added support for moreblocks, will register stairs a.s.o. for rack, bricks and obsidian(can be turned off, see init.lua)

Older versions:

uw_2_1.zip

v. 2.1

(25.04 KiB) Downloaded 100 times

-added underworld bottom at y = - 8000 (a huge lava lake with some pathways and pillars and a layer of turtlerock(thx for the idea, Digit) at the absolute bottom)

uw_2_0.zip

v. 2.0

(16.63 KiB) Downloaded 82 times

- Portal logic rewritten almost completely
-> portals now always spawn in caves and are less buggy
- tweaked mapgen params

[orwell]

Screenshots!

[amadin]

PilzAdam's portal can destroy buildings.

[orwell]

Let's say they could under certain circumstances. (there is a building at the place the portal is generated.)

[blert2112]

Had the same idea a few weeks backs and came up with the following...
https://github.com/blert2112/uw/archive/master.zip

It doesn't have the Corridors mod merged in and that is, by far, the biggest part of your speed problem. When I tried your modpack it would very often freeze while waiting for the Corridors mod to do something. Another part of the speed problem is using three LVMs when you could be using just one.
My mod does the following using only the one LVM...
- Place impenetrable bedrock layers at the minimum and maximum depths. You cannot dig or blast your way into the Underworld, you must use a portal.
- Convert all nodes within minimum and maximum depth into Underworld nodes, including dungeons.
- Generate big caves only between minimum and maximum depths.
- Has option to mitigate lava if you choose to do so.

Quick and dirty speed testing on my system came up with...
Subterrain mod (ms per chunk):
100's to 120's,
occasional dips into the 90's and jumps into the 150's,
rare jumps above 160

my mod (ms per chunk):
120's to 130's,
occasional dips into the 100's and jumps into the 160's
rare jumps above 180

Of course, it's all subjective numbers. As I said, t'was just a quick and dirty test session.

Plans for the future:
Add something like the Corridors mod, but a much better way to do it is needed IMO.
Figure out how to quickly place a portal into a dungeon or cave upon activation of a new portal, I hate portaling in to a 4x4 square.
Adjust node colors, they just don't seem quite right yet.

If you find you would like to work with this mod then please give credit to the original mod creators... See licenses.txt for that info.

[orwell]

Another part of the speed problem is using three LVMs when you could be using just one.

You're right, that would be more useful. Thanks, I will do that.
I know the Corridors mod is time-intensive, but the original "railcorridors" mod by Joz took up to 10 seconds for generating a mine because it didn't use LVM. But it does not always generate shafts, only sometimes, and that is OK.
But I think the biggest problem with it is the time the server is busy calculating the lava flows after the area has been generated.

[blert2112]

I just pushed an update because the bedrock and deepstone textures were borked, fixed now.

As for the lava... See the 'uw_mitigate_lava' parameter. You can have the mod remove a percentage of the lava from the area.

[orwell]

I add lava in my mod instead of removing it...
EDIT: outdated, it removes all lava now and then populates the ground with lava itself.

[emperor_genshin]

Does this mapgen generate bricked blocks aswell?

[orwell]

Yes, it does. the bridge constructions consist of bricks and underworld fences.

[emperor_genshin]

Nice work then, will test this out soon :)

Yes, it does. the bridge constructions consist of bricks and underworld fences.

[orwell]

Update!
Mapgen could look weird when using a world that used underworld_mp.

[orwell]

2.1 out!
Adds underworld bottom at -8000
Has anyone an idea what funny things could be put below the world bottom? (maybe a huge turtle-shaped boss???)

[orwell]

2.2 out!
Just a small change: added support for moreblocks stair registration, now includes stairs/slabs for rack, bricks and obsidian.

[Martno]

Looks great!

[azekill_DIABLO]

lag to death

but +1